Slip-joint for steam-pipes.



J. E. STEUER.

SLIP JOINT POR STEAM PIPES. AIILIOALIQNY FILED MAR.11, 1909.

Patented Dec. 21, 1909.

Amm/v5 ys.

Vl B narran entame rar rrr critica.,

JULUS-E'. STEUER, O BROOKLYN. NEW YORK.

SLP-JGINT FOR STEAM-PIPES.

Application tiled March 11,

.To all trimm 'it 'may macero.:

lie it ltnown that l. .tirata in. Sinin-zn, a

Spectication of Letters Patent.

citi'fzcu of the United Statt s,;ii1d residing at. i

lh'ooltlyn. in thc county ot' Kinggj` and State ot Xen' York, havcinvented certain new and usct'ul linprovtg-mcnt` in "llipw'ointa4 lorHtcanpiipe, of which the .following isl a specitici'ttiou, auch as willenable those sltillcd in the art to which it appcrtains to inalte anduse the saine.

ThiY invention relatesl to slip joints` tor steam pipe couplings, andthe object thereof to provide an improved device ot', thin claasparticularly designed to he used in conncctiou with high pressure steamapparatus, andL in which the longitudinal movement o the;longitudinallymovable nicmher ot' the joint. or coupling in controlled or regulated by@team prerourc in said joint or coupling operating in the direction ofthe boiler and to move said longitudinally movable meinA loerot thejoint. or coupling of thc hoilcr, and to prevent too great and suddenmovement ot' said part A in the opposite direction, and thus avoid thcstructural Shocks or jarsl in thev Lteam pipe connected with said jointvor coupling and in the variousjoints or connections o'l said steam pipeand in thc joints or connections ot' thc couplings thereof; and withthese and other objects in `View thc invention consists in a slip jointor coupling for strani p is (,'onatructed as hereinafter described andclaimed.

The invention i lully disclosed in the following Hpcciticatiou, ot'which the arcompauying drawing torina a part, in which the separateparts` of my improvement are designated hy auitahltrct'ercncecharacters,

Said drawing hcing a longitudinal Sectional view ot my improved .slipjoint coupling.

My invention cmuprises a main outer :asingl n and a pipe ff. one end ofwhich is passed into one end ot' the casing and the opposite cud o't"thc casing (ly is provided with a tlange u? hy ineans ot which it may hesccured to the casing of a boiler or to a pipe 'connecter-l therewith,which in turn is connected with the boiler, and ythe outer end ot thepipe is provided with a flange o: which' is4 preferably formedseparately and connected therewith hy a screw thread or other* wisc;`and hy means ot' which it may he connected with a steam pipe c by whichste-ani is conveyed to an engine or 'other power device directly orindirectly by iixeaiiuct other pipcsfand ronplintp connected therewith.

APatrntcd Der. 2i. i909.

1909. semi no. 482.853.

l`hc casing is divided at fr, into twoparts having hangen u* hy whichthey are bolted or othcrwiatx sccurcd together. and lict'wcen which isplaced a paclting ring of', and the cud ol the casing f/ opposite thclioilcl cud thercol is provided with a nt-clt n", in thc inner wall otwhich is l'ornicd a dccp annulail groove rf provided with a dischargeout,- let with which is preferably' councctcd a pet-cock coupling dcviccc with which may1 he connccted ay discharge pipe.

lhe main outer casing r/ i cnlargcd to lorm an annular chandler which iaplaced in communication.with the pipe by' radial ports or passagceformed in said pipe, and the pipe /1 where it paSHcs-through the mainouter casing o or through the chamber fie provided with an annularcollar .f/ which forms a piston which closely tits,l and is movahlc inthe Said chamlicr, and is provided with a packing ring 'r/l, and theinner cud ot thc pipe which is movalile in u supplemental annularchumhcr f forming an extension of the chamber f is also provided with apacking ring .r/.

The pipe o is also jnovided with an annular shoulder which limital theoutward movcmcnt thcrcol. and aait! pipe also providcd where ity passenthrough the neck (1,".

ote the casing fr, with packing rii'igs o" arranged on the oppoh'itcsides ot the annular groove n? in the said neck u." ot the casing Formedin one side ol the caaing u., longitudinally thereof. ia' a passage /1which com# munir-ales at one cud with the inncr cml ol' thc annularcluuuhcr hy a. radial llang'e h, and thc other end ot whichconnuunit-atea` willi thc annular groove a? as ,chown at l1".

'l`he parts olE 'my improved coupling areA assemhled hy tirst .insertingthe pipe l) into the lett end portion of the main outer casing u, thenpassing the right end portion ot said main outer casing into positionover said pipe and securing Said parta. together, after which the flange{F- may he secured to said pipe. The main outer casing ia also providcdwith a lubricating cup 'i through which thc walls of the chamber and thepiston r/ may hc luln'icated, and the operation will he readilyunderstood from the foregoing description when taken in connection withthe accompanying drawing and the Jfollowing statement thcreot.

.l't high pressure steam hc paasing tl'n'ough thc coupling from thehoiler or in the tlircction ot tl i arrow .fu the `steam will also passtif) through the ports or passages f2 into the annular chamber f andwill operate on the piston g to hold the pipe o in its normal postion orprevent its outward movement. It

high pressure steam is passing through a coupling of this class underordinary conditions there is frequently a great strain on the steam pipec and its connections, nt shown, especially if said connections containor involve elbow or other angular joints, and the quick movement of thepipe b serves to disturb or break such joints and also to injure theparts of the coupling or the connections thereof. With my improvement,however, the steam in the chamber f operates to force the pipe o towardthe boiler or in the direction of the arrow y and to prevent said pipesfrom too great movement or sudden movement in the direction of the arrowrc, but the construction and arrangement of my improved coupling isisuchas to permit of the usual or ordinary expansion and contraction of theparts thereof without injury thereto or to the connections of the pipeTie transverse dimensions of the annular chamber f are preferably equalto the transverse inner dimensions of the pipe Z1, and this as will beunderstood, operates to equalize the pressure in said pipe, and saidchamber and the pipe is as apt to move in the direction or the arrow z/as in that ot the arrow sa. It will be understood, however, that thepressure operating to hold the pipe Z1 or to force it in the directionof the arrow y/ will depend upon the dimensions of the Chamber f, andthese dimensions maybe regulated it' desired. ny water ot' condensationthat may collect in the end ot the chamber 7' adjacent to the boilerwill pass through the passage 71 and into the annular chamber or grooveH7 and may be'drawn oll, as will be readily understood, through theoutlet at ai, and any water of condensation that collects in the outeror opposite end of said chamber may be drawn -oti' through a passage jwhich communicates therewith and is provided with a pet-cock couplingsimilar lo the passage as and pet-cock coupling r.

Although l have described my improve` ment as a slip joint coupling forsteam pipes. it will be amiarent that the same may be used wheneverdevices ot this class are required and in connection with any kind orclass ot liquid or fluid pipes.

genees Having fully described my invention, what I claim as new anddesire to secure by Letters Patent, is

1. in a. sli joint for pipes, a main outer casing provi ed at one endwith a. neck and at the opposite end with an attaching ange, said.easing being divided centrally into two detaehably connected parts, apipe passing into the neck end of said casing and movable longitudinallytherein, said casing being also provided with an annular piston cham berthrough which said pipe passes,.and said pipe being provided with anannular meniher forming a piston movable in said chamber, the neck ot'the casing being also provided with a deep annular groove around saidpipe, the main casing being also provided in one side thereof with alongitudinal passage which conmmnicates at one end with said annulargroove and Vat the opposite end with the piston chamber. said annulargroove and the end of the piston chamber adjacent there-to beingprovided with discharge passages or ports.

2. In a sli 3 joint for pipes, a main outer casing provided at one endwith a. neck and at the opposite end with an attaching l'lange, saidcasing being divided centrally into two detaehably connected parts, apipe passing into the neck end of said casing and movable longitudinallytherein, said casing being also provided with an annular piston chamberthrough which said pipe passes, and said pipe being provided with anannular mem ber forming a piston movable in said chamber. the nef-h o'tthe easing being also provided with a deep annular groove around saidpipe, the main casing being also provided in one side thereof with alongitudinal-passage which eonnnunioatis al' one cud with said annulargroove and at the l opposite end with lhepistou chamber, said annulargroove and the end of the pistou chamber adjacent thereto being providedl with discharge passages or ports1 and said 10Q pipe being providedwith means for limiting the outward movement thereof.

in testimony that l claim the foregoing as my invention l have signed myname 1in presence ot' the subscribing witness-es this 105 llth day otMarch 1901).

JUlilUS lil. STEUER.

ll'inesses:

C. ll. lsluLnnANY, ll. l. (liNriELn.

